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Nuclear magnetic resonance and proton resonance imaging may improve the description of the properties of fluids in porous media by increasing the number of parameters which can be measured simultaneously. This project is designed to develop a global method for the measurement of proton magnetic relaxation parameters for fluids in porous media and to improve magnetic resonance imaging methods in order to display fluids in porous media. The relaxation times for five saturating fluids in three porous media were determined using four magnetic fields. The results obtained show that the presence of the porous medium reduces the relaxation times of the fluids it contains. The influence of the value of the magnetic field is not clear, as in certain cases an increase in relaxation times according to frequency is observed; in others, a reduction is observed. Alongside the spectroscopy studies, magnetic resonance imaging methods were adapted to display fluids in porous media. The images obtained were enhanced by 2- or 3-dimensional processing. The acquisition of a 3-D volume (x, y, z) required the development of a three-dimensional image reconstruction method based on tomography.

Additional information

Authors: LÉGAIT B, GERTH, Rueil-Malmaison (FR)
Bibliographic Reference: EUR 13463 EN (1991) 101 pp., MF, ECU 8
Availability: (2)
Record Number: 199110335 / Last updated on: 1994-12-02
Original language: en
Available languages: en
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